Home / 21,136.30-29,101.71-17,942.98

Finding the Fourth Proportional to 21,136.30, 29,101.71 and 17,942.98

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Solution

The fourth proportional to 21,136.30, 29,101.71 and 17,942.98 is: 24,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.30 : 29,101.71 = 17,942.98 : x
  2. Step 2: Convert to fraction form
    21,136.30/29,101.71 = 17,942.98/x
  3. Step 3: Cross multiply
    21,136.30x = 29,101.71 × 17,942.98
  4. Step 4: Simplify right side
    21,136.30x = 522,171,216.35
  5. Step 5: Solve for x
    x = 522,171,216.35/21,136.30
  6. Step 6: Final answer
    x = 24,704.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.